Manufacture of windings for electrical machines.



e, SCH O'NGUT.

MANUFACTURE OF WINDINGS FOR ELECTRICAL MACHINES.

APPLICATIDN FILED MAR. ll, l9l5- Patented Oct. 29, 1918.

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MANUFACTURE OF WINDINGS FOB ELECTRICAL MACHINES.

Speoiflcatl LersPetent. p t d 1 a, 191g,

Application filed March 11. 1915. Serial No. 13.808.

To all whom it 'may concern:

Be it known that I, GUs'rAv SGHESNGUT, civil engineer, a subject of theKing of Hungary, and resident of Budapest, in the Kingdom of Hungary,Austro-Hungarian Em ire, have invented an Improvement 1n the anufactureof Windings for Electrical Machines, of which the following descripinconnection with the accompanying drawings, is a specification, likecharacters on the drawings representingllike parts.

This invention relates to t e manufacture of windings for electricalmachines and will be best understood by reference to the followingdescription, taken in connection with of one specific apparatus forcarrying the same into effect embodyin the invention, it beingunderstood that t e invention in its true scope will be moreparticularly pointed out in the ap ended claims.

11 the drawings,

Figure 1 is a diagrammatic side view of selected for illustion relates;

Fig. 2 is a plan view of the apparatus shown in Fig. 1 in one operativeposition;

Fig. 3 is a planview of the form of apparatus shown in Fig. 1, inanother operative position from that shown in Fig. 2;

Fig. 4 shows, at the right a closed slot and at the left a partly closedslot, for the re- 'ception of the windings.

As is'well known, the windings in electrical machines are disposed inslots. These slots are either wholly closed, Fig. 4:, or the slit 8 ofthe slot 3 for the reception of the wire 1 is so narrow that the wirescannot be introduced into the slot through said slit but must be drawnin through the slot itself, the slot in such case being the so=calledpartly closed slot. The laying or drawing of the wires into the slot orslots has heretofore, so far as applicant is aware, been effected whollyby hand, and consequently is at best a slow and tiresome operationpresenting many disadvantages, the wires, for example, lying upon theground where they take up considerable space and being bent back andforth during the drawing-in or laying-in operation, whereby theinsulation.

is very liable to injury. a

The present invention aims, among other things, to overcome thedisadvantages or objections above set forth, the drawing through of thewire, when once its free end has been introduced into or passed throughthe slot by hand, being efi'ected in accordance with the presentinvention by suitable apparatus.

In the illustrative form ofapparatus shown for carrying the inventioninto efiect, take-up means for the wire is provided, said take-up meansherein including two drums each of which is mounted for swingingmovementabout an axis perpendicular to its axis of rotation and uponwhich two drums the wire is alternately wound and unwound.

- The provision for swinging each'drum about an axls perpendlcular toits axis of rotation is to facilitate the unwinding of the wire from thedrum, as will be hereinafter more fully described.

The electrical machine to receive the windings will preferably .beplaced upon a table or other suitable support, said table or supportbeing preferably adjustable vertically and horizontally in guides orways 0, d, respectively. The free end of the wire .is passed through theslot 3 by hand and is then connnected or secured to the free edge of oneof the drums, to the drum j situated at the right in Figs. 1, 2 and 3for example. The winding surface of the drum will preferably be ofsufficient extent to receive all the wire in a single layer. It isunderstood, of course, that the other end of the wire has previouslybeen secured to a suitable part of the electrical machine. By rotationof the drum f all the wire with the exception of that portion thereofcontained in the slot 3 will be wound up on the said drum from its outeredge to its inner edge. During this winding operation the drum f will bein the position at right angles to the position shown in Fig. 2, that isto say in the posi tion in which said drum f is represented as being inFig. 3. The drum f is now swung about the axis it, into the positionshown in Fig. 2, the end of the wire previously secured to the outeredge of the drum 7" is de tached therefrom and passed by hand throughanother slot of the machine e, from the right side of said machine Fig.2 to the left side thereof, and the end of the wire is secured to theouter edge of the drum 7. If the latter drum be now rotated the wirewill be drawn through the slot and 0d of the drum f until all of thewire has been wound up on the drum 7 with the exception of t t-portionof the wire contained in the to the second, this latter portion beingdrawn .closely against the end face of the machine and wiped intocorrect position thereagainst by the operator in the usual way by meansof a pattern or other suitable tool.

The end of the wire secured to the outer edge of the drum f is nowdetached therefrom, passed through another, slot in the machine e andsecured to the outer edge of the drum f. The drum f is now swung fromthe position shown in Fig. 2 about its axis 71) into the position shownin Fig. 3, or it may be swung into this position before passing the Wirethrough the slot in the machine e. By rotating the drum\ f the wire willbe drawn through this latter slot and placed in roper position therein.Before rotating t e drum f to wind the wire thereon, said drum will havebeen swung about its axis h from the position shown in Fig. 2 into thatshown in Fig. 3.

It will thus be seen that by the rotation of first one and then theother drumf, f, the wire will be drawn first in one direction and thenin the opposite direction through the slots of the electrical machine,and will be wound alternately first upon one and then upon the other ofsaid two drums, until the winding operation has been completed.

- The drum from which the wire is being unwound does not rotate duringthe unwinding of the wire therefrom but remains stationary, said drumbeing in the position occupied by the drum 7 for example in Fig. 3, andit will be noted that the wire is drawn off from the drum in successivecoils, axially of the drum, which greatly facilitates the operation.

In accordance with the present invention, controlling means is providedto insure that only one coil of wire shall be drawn off of a drum at atime, said means in the illustrative embodiment of the inventionincluding suitable members, such as levers i mounted for swingingmovement on pivots provided at the rear edge of drums f, f. When thewire is being wound upon a drum 7 or 7' these arms or levers z' areswung into the position shown in the case of drum 7 in Figs. 1 and 2 andof drum f in Fig. 3, said arms or levers then extending radially outwardfrom the edge of the drum, but when the wire is being unwound from thedrum said arms or levers 2' are swung into a position in which theyextend transversely of the winding surface of the drum as shown in thecase of drum f at the right inFigs. 1 and 2 and in the case of drum f,at the left in Fig. 3. In this position the arm '11 are preferably heldagainst the winding surface of the drum by yielding means such as aspring (not shown). Said levers or arms 2 may be moved from one positionraeaeae to the other by any suitable operating means such as a lever(not shown). a

The drums will preferably be rotated by independent means, such forexample as an electric motor connected thereto by a clutch provided withsuitable operating mechanism (not shown).

The electrical machine to receive the windings will preferably be soadjusted vertically and horizontally that the slot intended to receivethe winding shall be positioned so as to register longitudinally withthe path of movement of the wire as the latter is unwound from one drumon to the other one. Any suitable means (not shown) may be provided forsecuring or locking the drums in their winding or unwinding positlon.

It is to be understood that while the invention is herein shown asembodied in a specific apparatus, the invention is not to be consideredas circumscribed or limited to the slots in the machine alternately inopposite directions and to deliver the wire; and

means upon which said apparatus are swingingly mounted, whereby saidapparatus can be turned from wire receiving i-nto wire cleliveringposition, and vice versa.

- 2. Apparatus for effecting the winding in electrical machinesincluding, in combination, a support for the electrical machine to bewound; means vertically to adjust said support; and take-up apparatuslocated at opposite sides of said support and adapted to take up thewire after the free end thereof is passed through the slots in themachine alternately in opposite directions and to deliver the Wire; andmeans swingingly to support said take-up apparatus, whereby saidapparatus can be moved from wire re-' ceiving into wire deliveringposition, and vice versa.

3. Apparatus for efiecting the winding in electrical machines including,in combintion, a support for the electrical machine; means horizontallyto adjust said support; and take-up apparatus located at opposite sidesof said support and adapted to take up the wire after thefree endthereof is passed through the slots in the machine alternately 'take-unapparatus, whereby said take-up apparatus can be moved from wirereceiving into wire delivering position, and vice versa.

4. Apparatus for effecting the winding 6 in electrical machinesincluding, in combination, a support for the electrical machine to bewound; rotatable take-up drums for the wire, located at opposite sidesof said support; and means upon said drums, mov- 1 able into and out ofoperative position, for

controlling the unwinding of the wire from said drums.

5. Apparatus for efiecting the winding in electrical machines including,in combination, a support for the electrical machine to be wound; meansvertically to adjust said support; rotatable take up drums for the wire,located at opposite sides of said support; and means upon said drums,movable into and out of operative position, for controlling theunwinding of the wire from said drums.

6. Apparatus for effecting the winding in electrical machines including,in combination, a support for the electrical machine to wire, located atopposite sides of said support; means to support each of said drums forswinging movement about an axis perpendicular to its axis of rotation;and means upon said drums, movable into and out of operative position,for controlling the unwinding of the wire from said drum.

8. Apparatus for efi'ecting the winding in electrical machinesincluding, in combination, a support for the electrical machine to bewound; rotatable wire take-up and delivery drums, located at oppositesides of said support; and means to support each of said drums forswinging movement aboutau axis perpendicular to its axis of rotation,whereby each of said drums may be brought alternately intowire-receiving and wire-delivering position.

9. Apparatus for effecting the winding in electrical machines including,in combination, rotatable take-up and delivery drums located at oppositesides of the electrical machine to be wound, each of said drums beingprovided with a flange around one edge, the other edge being fiangeless;and means to support said drums for swinging movement each about an axisperpendicular to its axis of rotation.

In testimony whereof I have signed my name to this specification, in thepresence of twosubscribing witnesses.

GUSTAV SGHtjNGUT.

